397637793

素因数分解:

$3^2\times 7^2\times {\mathrm{131}}^1\times {\mathrm{6883}}^1$

素因数の和:7034

約数の個数: 36

約数和(自身を含む): 673337808

約数和(自身を除く): 275700015

約数列:

[1, 3, 7, 9, 21, 49, 63, 131, 147, 393, 441, 917, 1179, 2751, 6419, 6883, 8253, 19257, 20649, 48181, 57771, 61947, 144543, 337267, 433629, 901673, 1011801, 2705019, 3035403, 6311711, 8115057, 18935133, 44181977, 56805399, 132545931, 397637793]

約数ペア:

[(1, 397637793), (3, 132545931), (7, 56805399), (9, 44181977), (21, 18935133), (49, 8115057), (63, 6311711), (131, 3035403), (147, 2705019), (393, 1011801), (441, 901673), (917, 433629), (1179, 337267), (2751, 144543), (6419, 61947), (6883, 57771), (8253, 48181), (19257, 20649)]